I'm a software engineer based in São Paulo, Brazil. I build and maintain enterprise web products and open-source tools, with front-end depth and range across the stack.
My core is TypeScript, React, Angular and Node.js. Around it: REST APIs, PostgreSQL, AWS, Docker, CI/CD and test automation. I care about performance, accessibility and code that teams can keep evolving after launch.
- Software Engineer (Front-end) at MarketData — enterprise products for retail, energy, mobility and payments.
- Technical owner for Dexco and RecargaPay; previously at Banco do Brasil.
- Open-source maintainer of ATLAS, a live knowledge product with 896 entities, 7,918 sourced claims and 898 sources.
- Open to software engineering roles — front-end, product engineering and full-stack growth.
- Currently deepening: Java/Spring, AWS and distributed systems.
ATLAS is an interactive encyclopedia of history, politics and society built on a typed knowledge graph. People, works, concepts and events connect as a navigable network, and every claim shows its source plus whether it is documented fact, interpretation, controversy or an acknowledged gap.
Engineering highlights
- Angular 21 with Signals, standalone components and prerendering; strict TypeScript and Zod-validated content.
- Reproducible Wikimedia ingestion, static-first delivery and content published as immutable objects on Cloudflare R2.
- Playwright + axe accessibility and end-to-end tests; architecture boundaries enforced with ESLint.
- Bilingual editorial product with sourced claims, stable entity IDs and typed relations.
Live product · Source code · Contributing guide
| Project | What it is | Stack / status |
|---|---|---|
| ATLAS · live | Visual encyclopedia of history, politics and society with sources behind every claim. | Angular 21 · TypeScript · Zod · Cloudflare R2 · Static-first |
| KOReader Ecosystem | Local-first Windows companion for Calibre, KOReader, Kindle and Hardcover. | Electron · React · TypeScript · Python · Open source |
| Black Market | Production and market planner for the Brazilian Black Desert Online community. | Angular SSR · NestJS · PostgreSQL · Drizzle · Docker |
| Comandinha | Restaurant operations platform with digital menus, tables, orders and QR ordering. | Next.js · React · NestJS · PostgreSQL · Prisma |
| Portfolio · live | English-first portfolio with Portuguese version, case studies and ATS-oriented resumes. | HTML · CSS · TypeScript · Vite · Lighthouse 100 |
| Tool | What it does | Stack |
|---|---|---|
| Deploy Preflight | Validates environment variables, build artifacts and endpoints before deployment. | TypeScript · Node.js · GitHub Actions |
| Local Webhook Recorder | Captures webhooks in local SQLite and replays them to loopback handlers. | TypeScript · Node.js · SQLite |
| Compose Doctor | Read-only Docker Compose diagnostics with actionable CLI reports. | TypeScript · Docker Compose · CLI |
MarketData · Mid-level Software Engineer (Front-end) · Aug 2024 – Present
Enterprise SPAs in Angular and React for clients including Natura, Nissan, Dexco, RecargaPay, Patriá and Visa network testers. Technical owner for Dexco and RecargaPay.
Banco do Brasil · Software Engineer Intern (Front-end) · Oct 2022 – Aug 2024
Internal portal for the International Business Unit. Rebuilt a legacy system in Vue.js, maintained the internal Design System and integrated Node.js microservices.
B.Sc. in Computer Science · Universidade FAM · 2022–2025
Languages: TypeScript · JavaScript (ES6+) · SQL · HTML5 · CSS3
Front end: React · Next.js · Angular · RxJS · Vue.js · Tailwind CSS · SASS
Back end & data: Node.js · NestJS · REST APIs · PostgreSQL · Prisma · Drizzle · ASP.NET MVC
Cloud & DevOps: AWS · Docker · GitLab CI/CD · GitHub Actions · Vercel · Cloudflare
Engineering: Design Systems · web performance · Core Web Vitals · WCAG accessibility · technical SEO · Vitest · Playwright · axe · AI-assisted development
- Portfolio: bellussi.vercel.app
- LinkedIn: in/enzo-bellussi
- Email: enzobellussi3@gmail.com
- Resume: English · Português
Português
Sou engenheiro de software em São Paulo. Construo e mantenho produtos web corporativos e ferramentas open source, com profundidade em front-end e repertório em toda a stack.
Meu núcleo é TypeScript, React, Angular e Node.js. Ao redor: APIs REST, PostgreSQL, AWS, Docker, CI/CD e testes automatizados. Me importo com performance, acessibilidade e código que os times conseguem evoluir depois do deploy.
- Engenheiro de Software (Front-end) na MarketData — produtos corporativos para varejo, energia, mobilidade e pagamentos.
- Responsável técnico pelos projetos Dexco e RecargaPay; antes, no Banco do Brasil.
- Mantenedor open source do ATLAS, produto de conhecimento no ar com 896 entidades, 7.918 afirmações com fonte e 898 fontes.
- Aberto a posições de engenharia de software — front-end, engenharia de produto e crescimento full-stack.
- Aprofundando agora: Java/Spring, AWS e sistemas distribuídos.
ATLAS é uma enciclopédia interativa de história, política e sociedade construída sobre um grafo de conhecimento tipado. Pessoas, obras, conceitos e acontecimentos formam uma rede navegável, e cada afirmação mostra sua fonte e se é fato documentado, interpretação, controvérsia ou lacuna assumida.
Stack: Angular 21 · TypeScript strict · Signals · Zod · Playwright · axe · Cloudflare R2 · static-first.
MarketData · Engenheiro de Software Pleno (Front-end) · ago. 2024 – atual
Banco do Brasil · Estagiário em Engenharia de Software (Front-end) · out. 2022 – ago. 2024
Ciência da Computação · Universidade FAM · 2022–2025
Portfólio · LinkedIn · Email · Currículo PT · Resume EN